6" x 4" postcard is just right for postmark collectors. Decorative graphics on address side of card (shown in photo) do not detract from the stamp used on cover with any cancel. Postcards fit easily into any collecting album - standard 6" x 4" size card also makes organizing your collection easier, resulting in a more polished, professional appearance for your collection, too.

Back of postcard includes instructions for the recipient post office to best apply their cancellation, return mailing, reference to the USPS Rules for Collector Cancels (from the USPS Postal Operations Manual), and a place for you to specify a specific cancellation date if desired.